Guiding means for flooring-finishing machines



E. c. D ITTMAR GUIDING MEANS FOR FLOORTNG FINIvSI-IINGv MACHINES original Filed sept. 14, 192i QL@ "/f @t 'anni Patented dan. 2G,

TION OF :PENNSYLVANIA .ELP/IER C. DITTMAR, OF W'ILLIAMSPORT, EENNSYLVANIA, ASSIGNOR TO THE CROOKS-IDITTMR COMPANY, OF VILLIAMSQR'E.

PENNSYLVANIA, A CORPORA- GUIDING MEANS FOR FIiOORNG-FNISI-IING MACHINES.

Application filed september i4, i921, serial No. 500,658.

To all whom it' may concern.'

' Be it known that l, ELMER C. Drr'rMAu, a citizen of the 1United. States, residing at lWilliamsport, in the county of Lycoming and State of Pennsylvania, have invented certain new and useful Improvements in Guiding Means for Flooring-Finishing Machines, of which the following is a specification, reference being had therein to the accompanying drawing.

This invention relates to certain new and useful improvements in guiding means for strips of lumber in coating and finishing machines and is an improvement upon the guiding meanseshown and described in my application Serial No. 3111,4641-,-led July 31, 1919, the object being to provide a guide way formed of a pair of guide members, one of which is movable in respect to the other in order to allow the upper guide to be raised to release the strip which has jammed in the guide way in its passage through the machine.

Another object of my invention is to yeldably hold the movable guide in respect to the fixed guide which allows the guide to yield slightly so as to accommodate the irregularities in strips of lumber passing through said guide way.

Other and further objects and advantages of the invention will be hereinafter set forth and the novel features thereof defined by the appended claims.

In the drawings,

Figure 1 is a side elevation of a guide way for guiding strips of lumber in a machine for finishing flooring;

Figure 2 is a section taken on line 2--2 of Figure 1; and

Figure 3 is a section taken on line 3-3 of Figure 1.

In my companion application covering the machine for finishing flooring, the material being finished is passed through a guide way formed of fixed guides and I have found in practice that imperfect strips jam in the guide way which necessitates,

stopping the machine and removing the strip under' great difficulties and the object of this invention is to provide means for instantaneously releasing the strip when it jams so that it can be withdrawn.

In the drawing 1 indicates a suitable support on which are mounted superposed Renewed .Tune 17, 1924.

guides 2 and 3 which are provided with l edges corresponding to the shape of the strip being operated on and as hereinv shown the guide 2 is provided with substantially df-shaped tongue and the guide 3 with a substantially tl-shaped groove and it is, of course, understood that l do not wish to limit myself to the particular construction of guides used as l am aware that various constructions of guides can be employed withoutdeparting from the spirit of my invention.

The guide 2 is adjustably mounted as shown at el on an angle iron 5 carried by the support 1 and. the guide 3 is adjustably mounted as shown at 6 on an angle iron 'r' pivotally mounted on a bolt 8 on the upper end of the support 1 in order to allow the guide 3 to be raised as shown in dotted lines in Figure 1. The end of the guide 3 is cut away as shown in Figure 2 so as to allow the same to be raised without interfering or engaging the strip in the guide way.

A feeding throat 9 is formed at the opposite end of the guide way in which the strip 10 is inserted and forced in the guide way. The upper guide 3 is rounded as shown at 11 and pivotally mounted on the throat 9 is a yoke 12 provided with a spring plunger 13 adapted to engage the end of the guide 3 as clearly shown in Figures 1 and 3, the tension of the plunger being adjusted by a screw 14.

By this construction the 4upper guide which rests on the edge of the throat 9 is yieldably held in position in respect to the lower guide so that the same can yield to accommodate the unevenness of a strip of lumber in passing through the same. When a strip of lumber is warped or is not uniform in shape, it sometimes jams in passing through a guide way of this kind and in suoli a case the yoke 12 is thrown off from over the end of the upper guide and the handle 15 is grasped by the operator and the upper'guide is raised to a position as shown in dotted lines in Figure 1, which releases the strip of lumber in order to allow the same to be withdrawn.

While I have shown certain details of construction, I do not wish to limit myself to any particular marmer of mounting the guides' to form the guide way or for holding the movable guide yieldable in respect to the fixed guide as l am aware that various changes can be made without departing from the spirit of my invention as my invention consists broadly `in forming a guide wa ttor su 3 )ortineL and guiding a stri ot removed.

Vhen a machine of the kind described in the application referred to is provided with a guide wavy constructed in accordance with this invention and a strip oi' lumber is inserted in the guide way, the movable guide will yield to a certain extent so as to allow the strip to move ireely in the guide way and yet be held in its proper position to be acted onby themachine 'tor coating the surface thereof and when the strip is forced into the machine ot such a size and shape that it jams therein, the movableY guide wavy can be readily moved away t'rom the lixed guide member which enables the strip to be removed.

That l claim is l. i4-i guide way for wood tinishing machines comprising spaced guides, one oiLl the guides being movably mounted in respect to the other guide and yielding means Vfor holding said movable guide at a predetermined position in respect to the liXed guide.

2. A guide way for wood finishing ma `chilies comprising upper and lower guides,

the upper guide being movably mounted in respect to the lower guide and a yoke carried by the lower guide adapted to embrace a the upper guide lia-ving a spring pressed plunger for y'iel'dingly holding Ysaid movable guide in respect to the lower guide.

3. A guide way for finishing machines vtermed oi: a pair of `spaced guide members.;y

one of said Vguide members being pivotally mounted and means for holding said pivotally mountedY guide. parallel to the. fixed guide member.

Ll. guide way for wood finishing machines comprising a. pair of spaced guide members, one oi said guide members 4being pivotally mounted and capable of Sewing! ing away from the otherguide member, a yoke carried by the -iiXed guide member adapted to embrace the pivotally mounted guide member and a vspring plunger' carried by said yoke for yieldmgly holding said pivoted guide member in respect tofthe l'ixed guide. Y Y

5. A guide way for wood tinishing maf chines formed 'ofV a `pair of"-adjustablyy mounted guide members3 one 'of said. guide members being pivotally mounted?V 'in respect to the other guide member and means ltor i,fieldingly holding` said pivotally mounted guide in respect to the `ixedguide.

In testimony whereof I hereunto affix my signature. Y

ELMER C. DITTMlR. 

